The roller is a replacement part for the old broken rollers.
Spare part for roller Hörmann 3007936.
The roller is split in two for easy assembly.
The following parts are needed:
My 3D CAD data:
2x track roller
2x round cover
2x hexagonal cover
2x ISO 4762 M3x20 (screw)
Lock nuts or standard nuts can be used.
2x ISO 4032/4035 M3
2x DIN 985 M3
Glue the caps into the roller with some super glue!
Perfect spare part for old broken rollers.